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<div class="subTitle">com.badlogic.gdx.utils</div>
<h2 title="Class IdentityMap" class="title">Class IdentityMap&lt;K,V&gt;</h2>
</div>
<div class="contentContainer">
<ul class="inheritance">
<li>java.lang.Object</li>
<li>
<ul class="inheritance">
<li>com.badlogic.gdx.utils.IdentityMap&lt;K,V&gt;</li>
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<dt>All Implemented Interfaces:</dt>
<dd>java.lang.Iterable&lt;<a href="../../../../com/badlogic/gdx/utils/IdentityMap.Entry.html" title="class in com.badlogic.gdx.utils">IdentityMap.Entry</a>&lt;K,V&gt;&gt;</dd>
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<pre>public class <span class="typeNameLabel">IdentityMap&lt;K,V&gt;</span>
extends java.lang.Object
implements java.lang.Iterable&lt;<a href="../../../../com/badlogic/gdx/utils/IdentityMap.Entry.html" title="class in com.badlogic.gdx.utils">IdentityMap.Entry</a>&lt;K,V&gt;&gt;</pre>
<div class="block">An unordered map that uses identity comparison for keys. This implementation is a cuckoo hash map using 3 hashes, random
walking, and a small stash for problematic keys. Null keys are not allowed. Null values are allowed. No allocation is done
except when growing the table size. <br>
<br>
This map performs very fast get, containsKey, and remove (typically O(1), worst case O(log(n))). Put may be a bit slower,
depending on hash collisions. Load factors greater than 0.91 greatly increase the chances the map will have to rehash to the
next higher POT size.</div>
<dl>
<dt><span class="simpleTagLabel">Author:</span></dt>
<dd>Nathan Sweet</dd>
</dl>
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<td class="colFirst"><code>static class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/utils/IdentityMap.Entries.html" title="class in com.badlogic.gdx.utils">IdentityMap.Entries</a>&lt;<a href="../../../../com/badlogic/gdx/utils/IdentityMap.Entries.html" title="type parameter in IdentityMap.Entries">K</a>,<a href="../../../../com/badlogic/gdx/utils/IdentityMap.Entries.html" title="type parameter in IdentityMap.Entries">V</a>&gt;</span></code>&nbsp;</td>
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<td class="colFirst"><code>static class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/utils/IdentityMap.Entry.html" title="class in com.badlogic.gdx.utils">IdentityMap.Entry</a>&lt;<a href="../../../../com/badlogic/gdx/utils/IdentityMap.Entry.html" title="type parameter in IdentityMap.Entry">K</a>,<a href="../../../../com/badlogic/gdx/utils/IdentityMap.Entry.html" title="type parameter in IdentityMap.Entry">V</a>&gt;</span></code>&nbsp;</td>
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<td class="colFirst"><code>static class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/utils/IdentityMap.Keys.html" title="class in com.badlogic.gdx.utils">IdentityMap.Keys</a>&lt;<a href="../../../../com/badlogic/gdx/utils/IdentityMap.Keys.html" title="type parameter in IdentityMap.Keys">K</a>&gt;</span></code>&nbsp;</td>
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<td class="colFirst"><code>static class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/utils/IdentityMap.Values.html" title="class in com.badlogic.gdx.utils">IdentityMap.Values</a>&lt;<a href="../../../../com/badlogic/gdx/utils/IdentityMap.Values.html" title="type parameter in IdentityMap.Values">V</a>&gt;</span></code>&nbsp;</td>
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<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/utils/IdentityMap.html#size">size</a></span></code>&nbsp;</td>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/utils/IdentityMap.html#IdentityMap--">IdentityMap</a></span>()</code>
<div class="block">Creates a new map with an initial capacity of 51 and a load factor of 0.8.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/utils/IdentityMap.html#IdentityMap-com.badlogic.gdx.utils.IdentityMap-">IdentityMap</a></span>(<a href="../../../../com/badlogic/gdx/utils/IdentityMap.html" title="class in com.badlogic.gdx.utils">IdentityMap</a>&nbsp;map)</code>
<div class="block">Creates a new map identical to the specified map.</div>
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</tr>
<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/utils/IdentityMap.html#IdentityMap-int-">IdentityMap</a></span>(int&nbsp;initialCapacity)</code>
<div class="block">Creates a new map with a load factor of 0.8.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/utils/IdentityMap.html#IdentityMap-int-float-">IdentityMap</a></span>(int&nbsp;initialCapacity,
float&nbsp;loadFactor)</code>
<div class="block">Creates a new map with the specified initial capacity and load factor.</div>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/utils/IdentityMap.html#clear--">clear</a></span>()</code>&nbsp;</td>
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<tr id="i1" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/utils/IdentityMap.html#clear-int-">clear</a></span>(int&nbsp;maximumCapacity)</code>
<div class="block">Clears the map and reduces the size of the backing arrays to be the specified capacity if they are larger.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/utils/IdentityMap.html#containsKey-K-">containsKey</a></span>(<a href="../../../../com/badlogic/gdx/utils/IdentityMap.html" title="type parameter in IdentityMap">K</a>&nbsp;key)</code>&nbsp;</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/utils/IdentityMap.html#containsValue-java.lang.Object-boolean-">containsValue</a></span>(java.lang.Object&nbsp;value,
boolean&nbsp;identity)</code>
<div class="block">Returns true if the specified value is in the map.</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/utils/IdentityMap.html#ensureCapacity-int-">ensureCapacity</a></span>(int&nbsp;additionalCapacity)</code>
<div class="block">Increases the size of the backing array to accommodate the specified number of additional items.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code><a href="../../../../com/badlogic/gdx/utils/IdentityMap.Entries.html" title="class in com.badlogic.gdx.utils">IdentityMap.Entries</a>&lt;<a href="../../../../com/badlogic/gdx/utils/IdentityMap.html" title="type parameter in IdentityMap">K</a>,<a href="../../../../com/badlogic/gdx/utils/IdentityMap.html" title="type parameter in IdentityMap">V</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/utils/IdentityMap.html#entries--">entries</a></span>()</code>
<div class="block">Returns an iterator for the entries in the map.</div>
</td>
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<tr id="i6" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/utils/IdentityMap.html#equals-java.lang.Object-">equals</a></span>(java.lang.Object&nbsp;obj)</code>&nbsp;</td>
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<tr id="i7" class="rowColor">
<td class="colFirst"><code><a href="../../../../com/badlogic/gdx/utils/IdentityMap.html" title="type parameter in IdentityMap">K</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/utils/IdentityMap.html#findKey-java.lang.Object-boolean-">findKey</a></span>(java.lang.Object&nbsp;value,
boolean&nbsp;identity)</code>
<div class="block">Returns the key for the specified value, or null if it is not in the map.</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code><a href="../../../../com/badlogic/gdx/utils/IdentityMap.html" title="type parameter in IdentityMap">V</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/utils/IdentityMap.html#get-K-">get</a></span>(<a href="../../../../com/badlogic/gdx/utils/IdentityMap.html" title="type parameter in IdentityMap">K</a>&nbsp;key)</code>&nbsp;</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code><a href="../../../../com/badlogic/gdx/utils/IdentityMap.html" title="type parameter in IdentityMap">V</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/utils/IdentityMap.html#get-K-V-">get</a></span>(<a href="../../../../com/badlogic/gdx/utils/IdentityMap.html" title="type parameter in IdentityMap">K</a>&nbsp;key,
<a href="../../../../com/badlogic/gdx/utils/IdentityMap.html" title="type parameter in IdentityMap">V</a>&nbsp;defaultValue)</code>&nbsp;</td>
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<tr id="i10" class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/utils/IdentityMap.html#hashCode--">hashCode</a></span>()</code>&nbsp;</td>
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<tr id="i11" class="rowColor">
<td class="colFirst"><code>java.util.Iterator&lt;<a href="../../../../com/badlogic/gdx/utils/IdentityMap.Entry.html" title="class in com.badlogic.gdx.utils">IdentityMap.Entry</a>&lt;<a href="../../../../com/badlogic/gdx/utils/IdentityMap.html" title="type parameter in IdentityMap">K</a>,<a href="../../../../com/badlogic/gdx/utils/IdentityMap.html" title="type parameter in IdentityMap">V</a>&gt;&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/utils/IdentityMap.html#iterator--">iterator</a></span>()</code>&nbsp;</td>
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<tr id="i12" class="altColor">
<td class="colFirst"><code><a href="../../../../com/badlogic/gdx/utils/IdentityMap.Keys.html" title="class in com.badlogic.gdx.utils">IdentityMap.Keys</a>&lt;<a href="../../../../com/badlogic/gdx/utils/IdentityMap.html" title="type parameter in IdentityMap">K</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/utils/IdentityMap.html#keys--">keys</a></span>()</code>
<div class="block">Returns an iterator for the keys in the map.</div>
</td>
</tr>
<tr id="i13" class="rowColor">
<td class="colFirst"><code><a href="../../../../com/badlogic/gdx/utils/IdentityMap.html" title="type parameter in IdentityMap">V</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/utils/IdentityMap.html#put-K-V-">put</a></span>(<a href="../../../../com/badlogic/gdx/utils/IdentityMap.html" title="type parameter in IdentityMap">K</a>&nbsp;key,
<a href="../../../../com/badlogic/gdx/utils/IdentityMap.html" title="type parameter in IdentityMap">V</a>&nbsp;value)</code>&nbsp;</td>
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<tr id="i14" class="altColor">
<td class="colFirst"><code><a href="../../../../com/badlogic/gdx/utils/IdentityMap.html" title="type parameter in IdentityMap">V</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/utils/IdentityMap.html#remove-K-">remove</a></span>(<a href="../../../../com/badlogic/gdx/utils/IdentityMap.html" title="type parameter in IdentityMap">K</a>&nbsp;key)</code>&nbsp;</td>
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<tr id="i15" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/utils/IdentityMap.html#shrink-int-">shrink</a></span>(int&nbsp;maximumCapacity)</code>
<div class="block">Reduces the size of the backing arrays to be the specified capacity or less.</div>
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<tr id="i16" class="altColor">
<td class="colFirst"><code>java.lang.String</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/utils/IdentityMap.html#toString--">toString</a></span>()</code>&nbsp;</td>
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<tr id="i17" class="rowColor">
<td class="colFirst"><code><a href="../../../../com/badlogic/gdx/utils/IdentityMap.Values.html" title="class in com.badlogic.gdx.utils">IdentityMap.Values</a>&lt;<a href="../../../../com/badlogic/gdx/utils/IdentityMap.html" title="type parameter in IdentityMap">V</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/utils/IdentityMap.html#values--">values</a></span>()</code>
<div class="block">Returns an iterator for the values in the map.</div>
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<h4>size</h4>
<pre>public&nbsp;int size</pre>
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<h4>IdentityMap</h4>
<pre>public&nbsp;IdentityMap()</pre>
<div class="block">Creates a new map with an initial capacity of 51 and a load factor of 0.8.</div>
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<h4>IdentityMap</h4>
<pre>public&nbsp;IdentityMap(int&nbsp;initialCapacity)</pre>
<div class="block">Creates a new map with a load factor of 0.8.</div>
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<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>initialCapacity</code> - If not a power of two, it is increased to the next nearest power of two.</dd>
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<h4>IdentityMap</h4>
<pre>public&nbsp;IdentityMap(int&nbsp;initialCapacity,
float&nbsp;loadFactor)</pre>
<div class="block">Creates a new map with the specified initial capacity and load factor. This map will hold initialCapacity items before
growing the backing table.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>initialCapacity</code> - If not a power of two, it is increased to the next nearest power of two.</dd>
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<pre>public&nbsp;IdentityMap(<a href="../../../../com/badlogic/gdx/utils/IdentityMap.html" title="class in com.badlogic.gdx.utils">IdentityMap</a>&nbsp;map)</pre>
<div class="block">Creates a new map identical to the specified map.</div>
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<pre>public&nbsp;<a href="../../../../com/badlogic/gdx/utils/IdentityMap.html" title="type parameter in IdentityMap">V</a>&nbsp;put(<a href="../../../../com/badlogic/gdx/utils/IdentityMap.html" title="type parameter in IdentityMap">K</a>&nbsp;key,
<a href="../../../../com/badlogic/gdx/utils/IdentityMap.html" title="type parameter in IdentityMap">V</a>&nbsp;value)</pre>
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<pre>public&nbsp;<a href="../../../../com/badlogic/gdx/utils/IdentityMap.html" title="type parameter in IdentityMap">V</a>&nbsp;get(<a href="../../../../com/badlogic/gdx/utils/IdentityMap.html" title="type parameter in IdentityMap">K</a>&nbsp;key)</pre>
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<pre>public&nbsp;<a href="../../../../com/badlogic/gdx/utils/IdentityMap.html" title="type parameter in IdentityMap">V</a>&nbsp;get(<a href="../../../../com/badlogic/gdx/utils/IdentityMap.html" title="type parameter in IdentityMap">K</a>&nbsp;key,
<a href="../../../../com/badlogic/gdx/utils/IdentityMap.html" title="type parameter in IdentityMap">V</a>&nbsp;defaultValue)</pre>
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<pre>public&nbsp;<a href="../../../../com/badlogic/gdx/utils/IdentityMap.html" title="type parameter in IdentityMap">V</a>&nbsp;remove(<a href="../../../../com/badlogic/gdx/utils/IdentityMap.html" title="type parameter in IdentityMap">K</a>&nbsp;key)</pre>
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<pre>public&nbsp;void&nbsp;shrink(int&nbsp;maximumCapacity)</pre>
<div class="block">Reduces the size of the backing arrays to be the specified capacity or less. If the capacity is already less, nothing is
done. If the map contains more items than the specified capacity, the next highest power of two capacity is used instead.</div>
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<pre>public&nbsp;void&nbsp;clear(int&nbsp;maximumCapacity)</pre>
<div class="block">Clears the map and reduces the size of the backing arrays to be the specified capacity if they are larger.</div>
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<pre>public&nbsp;void&nbsp;clear()</pre>
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<pre>public&nbsp;boolean&nbsp;containsValue(java.lang.Object&nbsp;value,
boolean&nbsp;identity)</pre>
<div class="block">Returns true if the specified value is in the map. Note this traverses the entire map and compares every value, which may be
an expensive operation.</div>
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<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>identity</code> - If true, uses == to compare the specified value with values in the map. If false, uses
<a href="../../../../com/badlogic/gdx/utils/IdentityMap.html#equals-java.lang.Object-"><code>equals(Object)</code></a>.</dd>
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<pre>public&nbsp;boolean&nbsp;containsKey(<a href="../../../../com/badlogic/gdx/utils/IdentityMap.html" title="type parameter in IdentityMap">K</a>&nbsp;key)</pre>
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<pre>public&nbsp;<a href="../../../../com/badlogic/gdx/utils/IdentityMap.html" title="type parameter in IdentityMap">K</a>&nbsp;findKey(java.lang.Object&nbsp;value,
boolean&nbsp;identity)</pre>
<div class="block">Returns the key for the specified value, or null if it is not in the map. Note this traverses the entire map and compares
every value, which may be an expensive operation.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>identity</code> - If true, uses == to compare the specified value with values in the map. If false, uses
<a href="../../../../com/badlogic/gdx/utils/IdentityMap.html#equals-java.lang.Object-"><code>equals(Object)</code></a>.</dd>
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<pre>public&nbsp;void&nbsp;ensureCapacity(int&nbsp;additionalCapacity)</pre>
<div class="block">Increases the size of the backing array to accommodate the specified number of additional items. Useful before adding many
items to avoid multiple backing array resizes.</div>
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<pre>public&nbsp;int&nbsp;hashCode()</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code>hashCode</code>&nbsp;in class&nbsp;<code>java.lang.Object</code></dd>
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<pre>public&nbsp;boolean&nbsp;equals(java.lang.Object&nbsp;obj)</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code>equals</code>&nbsp;in class&nbsp;<code>java.lang.Object</code></dd>
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<pre>public&nbsp;java.lang.String&nbsp;toString()</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code>toString</code>&nbsp;in class&nbsp;<code>java.lang.Object</code></dd>
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<pre>public&nbsp;java.util.Iterator&lt;<a href="../../../../com/badlogic/gdx/utils/IdentityMap.Entry.html" title="class in com.badlogic.gdx.utils">IdentityMap.Entry</a>&lt;<a href="../../../../com/badlogic/gdx/utils/IdentityMap.html" title="type parameter in IdentityMap">K</a>,<a href="../../../../com/badlogic/gdx/utils/IdentityMap.html" title="type parameter in IdentityMap">V</a>&gt;&gt;&nbsp;iterator()</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>iterator</code>&nbsp;in interface&nbsp;<code>java.lang.Iterable&lt;<a href="../../../../com/badlogic/gdx/utils/IdentityMap.Entry.html" title="class in com.badlogic.gdx.utils">IdentityMap.Entry</a>&lt;<a href="../../../../com/badlogic/gdx/utils/IdentityMap.html" title="type parameter in IdentityMap">K</a>,<a href="../../../../com/badlogic/gdx/utils/IdentityMap.html" title="type parameter in IdentityMap">V</a>&gt;&gt;</code></dd>
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<pre>public&nbsp;<a href="../../../../com/badlogic/gdx/utils/IdentityMap.Entries.html" title="class in com.badlogic.gdx.utils">IdentityMap.Entries</a>&lt;<a href="../../../../com/badlogic/gdx/utils/IdentityMap.html" title="type parameter in IdentityMap">K</a>,<a href="../../../../com/badlogic/gdx/utils/IdentityMap.html" title="type parameter in IdentityMap">V</a>&gt;&nbsp;entries()</pre>
<div class="block">Returns an iterator for the entries in the map. Remove is supported. Note that the same iterator instance is returned each
time this method is called. Use the <a href="../../../../com/badlogic/gdx/utils/IdentityMap.Entries.html" title="class in com.badlogic.gdx.utils"><code>IdentityMap.Entries</code></a> constructor for nested or multithreaded iteration.</div>
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<pre>public&nbsp;<a href="../../../../com/badlogic/gdx/utils/IdentityMap.Values.html" title="class in com.badlogic.gdx.utils">IdentityMap.Values</a>&lt;<a href="../../../../com/badlogic/gdx/utils/IdentityMap.html" title="type parameter in IdentityMap">V</a>&gt;&nbsp;values()</pre>
<div class="block">Returns an iterator for the values in the map. Remove is supported. Note that the same iterator instance is returned each
time this method is called. Use the <a href="../../../../com/badlogic/gdx/utils/IdentityMap.Entries.html" title="class in com.badlogic.gdx.utils"><code>IdentityMap.Entries</code></a> constructor for nested or multithreaded iteration.</div>
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<pre>public&nbsp;<a href="../../../../com/badlogic/gdx/utils/IdentityMap.Keys.html" title="class in com.badlogic.gdx.utils">IdentityMap.Keys</a>&lt;<a href="../../../../com/badlogic/gdx/utils/IdentityMap.html" title="type parameter in IdentityMap">K</a>&gt;&nbsp;keys()</pre>
<div class="block">Returns an iterator for the keys in the map. Remove is supported. Note that the same iterator instance is returned each time
this method is called. Use the <a href="../../../../com/badlogic/gdx/utils/IdentityMap.Entries.html" title="class in com.badlogic.gdx.utils"><code>IdentityMap.Entries</code></a> constructor for nested or multithreaded iteration.</div>
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